Relief valve assembly for recyclable pressure vessels

Details Relief valve assembly for recyclable pressure vessels Relief valve assembly for recyclable pressure vessels

1992-05-28

1993-03-02

Hepperle, Stephen M.

Fluid handling

Removable valve head and seat unit

Threaded into valve casing

13754313, 137587, 251904, F16K 17196

Patent

active

051900726

ABSTRACT:
A tubular insert is adapted to be secured into an opening in the vessel and is formed with an internally threaded section adapted to receive a closure. The closure is a subassembly which includes a core hosuing having a threaded section threadedly engaging the insert and an internal threaded section and formed with a valve seat at its lower end. A core body is threadedly disposed in the housing and a valve element engages the seat with a compression spring inbetween the body and valve element. A stop is provided on the insert and retaining means are provided on the housing so that when the core housing is unscrewed, it is loosely retained in the insert indicating to everyone that the vessel is depressurized and the metal of the vessel can be heated and melted without any fear of explosion.

REFERENCES:
patent: 3158351 (1964-11-01), Kauffman et al.
patent: 3918482 (1975-11-01), Stroh
patent: 4413804 (1983-11-01), Lanins et al.
patent: 4425935 (1984-01-01), Gonzalez

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